Question

Asked Jan 16, 2020

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A health clinic uses a solution of bleach to sterilize petri dishes in which cultures are grown. The sterilization tank contains 120 gal of a solution of 4% ordinary household bleach mixed with pure distilled water. New research indicates that the concentration of bleach should be 5% for complete sterilization. How much of the solution should be drained and replaced with bleach to increase the bleach content to the recommended level?

Step 1

Let *x* = number of gallons drained

According to the given question,

Bleach content of original solution – bleach content of the solution that is...

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